Chapter 1: Sets
Chapter 1: Sets
Exercise
Question
Question: 9 (i)
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If A = {3, 6, 9, 12, 15, 18, 21}, B = {4, 8, 12, 16, 20}, C = {2, 4, 6, 8, 10, 12, 14, 16}, D = {5, 10, 15, 20}; find:
(i) A - B
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Answer
1
Find the difference A − B by finding the elements of set A that are not present in set B.
Answer: {3, 6, 9, 15, 18, 21}